The HD 9446 system contains 2 exoplanets. It is located 164.22 light years away from the solar system.
| Mass | 1 solar masses |
| Radius | 1 solar radiae |
| Temperature | 5793 kelvin |
| Stellar Metallicity | 0.09 decimal exponent |
| Age | - billion years |
At more than 50 Earth masses, HD 9446 b is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 222.472 Earth masses |
| Density | 0.446 grams per cubic centimeter |
| Radius | 14.000 Earth radiae |
| Semi-major Axis | 0.189 AU |
| Eccentricity | 0.2 |
| Orbital Period | 30.052 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Haute-Provence Observatory |
| Discovery Telescope | 1.93 m Telescope |
| Discovery Instrument | SOPHIE Spectrograph |
| Discovery Date | 2010-04 |
| Reference | Hebrard et al. 2010 |
At more than 50 Earth masses, HD 9446 c is a gas giant, a planet whose mass is mostly made up of hydrogen and helium, like Jupiter and Saturn.
| Mass | 578.426 Earth masses |
| Density | 1.320 grams per cubic centimeter |
| Radius | 13.400 Earth radiae |
| Semi-major Axis | 0.654 AU |
| Eccentricity | 0.06 |
| Orbital Period | 192.900 days |
| Discovery Method | Radial Velocity |
| Discovery Facility | Haute-Provence Observatory |
| Discovery Telescope | 1.93 m Telescope |
| Discovery Instrument | SOPHIE Spectrograph |
| Discovery Date | 2010-04 |
| Reference | Hebrard et al. 2010 |